Delta

Small yet powerful device intrusion detection mechanism. It has a negligible footprint, it is very portable, and basically can be used anywhere, even in IoT devices.

Malware detection

Detected, reverse-engineered and eliminated malware in a big project.

OpenVPN solution for router software

A custom OpenVPN solution for Linux-based router software was architected, developed and made available publicly. Partially supports cryptography offloading and packet traffic acceleration.

IPSec solution for router software

An L2TP/L2TP+IPSec solution for Linux-based router software was architected, developed and made available publicly. It also works with partial cryptography and packet traffic acceleration.

Certificate Store for router software

I've architected and implemented a complete certificate store module for commercial router, which supported certificate/private key generation, import/export, verification against a private key. Still used without major edits (as of 2022).